azure-functions

What it is and what it does

Azure Functions is Microsoft's serverless compute offering, and this library provides the Python programming model for building functions that run on it. It exposes decorators and type hints for defining function entry points triggered by HTTP requests, timers, queue messages, blob storage events, and other Azure services. The library handles the marshaling between Azure's function runtime and your Python code, so you write a decorated function and the runtime invokes it when events arrive.

The package is designed to work within Azure's managed environment but can also be used locally during development with the Azure Functions Core Tools CLI. It requires Python 3.13 or later and depends only on werkzeug for HTTP handling, making it lightweight to install. The library is actively maintained and production-stable, suitable for teams building event-driven applications on Azure's infrastructure.

Use it for:

• Build HTTP-triggered APIs that scale automatically without managing servers or containers.
• Process messages from Azure Queue Storage or Service Bus with function bindings.
• React to blob storage events (create, update, delete) with automatic function invocation.
• Schedule periodic tasks using timer triggers for maintenance, cleanup, or batch jobs.
• Integrate with Azure Cosmos DB, Event Hubs, or SQL databases via declarative bindings.

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Provides Python bindings and decorators for building serverless functions on Azure Functions runtime, supporting triggers and bindings for HTTP, timers, queues, blobs, and other Azure services.

Yes, if you are building on Azure Functions. This is the official Python library for the platform and is actively maintained with no known vulnerabilities. Install friction is low, licensing is permissive, and it supports current Python versions (3.13+). Not applicable outside the Azure Functions ecosystem.

Install

azure-functions on PyPI

pip install azure-functions

uv add azure-functions

poetry add azure-functions

Installing azure-functions

Before you install

Active maintenance with a release 39 days ago. Single lightweight runtime dependency (werkzeug) keeps install friction low.

License in practice

MIT License permits unrestricted use, modification, and distribution in both open and proprietary projects.

Quickstart

pip install azure-functions

import azure.functions as func

@func.route_handler(route="hello")
def http_trigger(req: func.HttpRequest) -> func.HttpResponse:
    return func.HttpResponse("Hello, World!")

Requires Python 3.13 or later; intended for use within Azure Functions runtime environment or local development with Azure Functions Core Tools.

Verify before relying

• Specific trigger and binding types available in version 2.2.0 (description lists many but does not confirm all are in this release)
• Whether werkzeug is a direct runtime dependency or a transitive dependency of another component
• Support status for Azure Functions 2.x and 3.x runtimes mentioned as EOL in the description

Package facts

Evidence: azure_functions-2.2.0-py3-none-any.whl

Tags

More Application Frameworks packages